Answer:
-6
Step-by-step explanation:
have a <em><u>fabulous</u></em> day! <em><u>xoxo-</u></em>
let's solve :
value of x = 30
The tip would be $3.90 and rounded to the nearest dollar would be $4.00
<em>B. Statistical analysis is applied to the results of the study.</em>
<em>B</em><em> </em><em>and </em><em>C.</em>
